Discover the PVC/PTFE Orifice Plate Flowmeters, designed for gases and liquids. Available in sizes from 1/2" to 24", they ensure reliable flow measurement with easy installation. PTFE orifice plate flowmeter, 14" line size, 6.600" bore, 0.5 Beta, water capacity: 100" d.p. W/C, 1537.49 GPM flow; air capacity: 5477.67 SCFM @ 14.7 psia, 8812.87 SCFM @ 20 psig, 16409.42 SCFM @ 100 psig; 15 lb.